Lesser Nighthawk vs Scissor-tailed Nightjar
Chordeiles acutipennis เปรียบเทียบกับ Hydropsalis torquata
Side-by-Side Comparison
| คุณสมบัติ | Lesser Nighthawk | Scissor-tailed Nightjar |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Chordeiles acutipennis | Hydropsalis torquata |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Caprimulgidae | Caprimulgidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 33.0 cm (13.0 in) | 36.8 cm (14.5 in) |
| น้ำหนัก | 50.0 g (1.76 oz) | 54.625 g (1.93 oz) |
| อาหาร | Hawks small flying insects at dusk and dawn over North and South American arid scrub … | Catches moths, beetles, and flying insects in aerial sallies at night over South American savanna. |
| จำนวนไข่ | 1-2 | 2 |
| Population Trend | — | — |
Habitat Comparison
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ไม่มี
Lesser Nighthawk only
Scissor-tailed Nightjar only
Song & Call Comparison
Lesser Nighthawk
Loud purring trill; buzzy 'brrrrr' given in flight; lower and softer than Common Nighthawk; males display with booming wingbeats; calls at dusk over deserts
Scissor-tailed Nightjar
Loud, clear churring 'quurrr'; repetitive at moderate pitch; calls from open cerrado at dusk; males call persistently from prominent perches; alarm a sharp 'chek'
Geographic Range & Migration
Lesser Nighthawk
Breeds in open arid scrub from southwestern USA south through Central America to western South America; winters in Mexico and northern South America.
Scissor-tailed Nightjar
Resident of open savanna, cerrado, and scrub from Colombia and Venezuela south through Brazil to Bolivia and northern Argentina.
สถานะการอนุรักษ์
Lesser Nighthawk
Scissor-tailed Nightjar
How to Tell Them Apart
Lesser Nighthawk
Brown and buff mottled above; buff-white below with brown barring; white throat in male; white wing bar closer to wingtip than in Common Nighthawk; buff tail band. Female with buff …
Scissor-tailed Nightjar
Male with enormously elongated outer tail feathers to 25 cm forming scissors in flight; brown and buff mottled body; white throat; white wing spots. Female brown mottled with normal tail …
About These Birds
Lesser Nighthawk
A small Caprimulgidae nighthawk (~50 g) of deserts, semi-arid scrub, and open woodland from the southwestern United States to Peru and Brazil. Brown-and-buff patterned; males have a white throat bar. Low, buoyant flight close to the ground at dusk. Hunts insects aerially. Migratory; Least Concern.
Scissor-tailed Nightjar
A medium Caprimulgidae nightjar (~55 g) of open woodland, cerrado, and grassland in eastern and central South America. Males possess spectacularly long scissor-like outer tail feathers. Common around cattle pastures and agricultural land. Feeds on large moths and beetles at night. Least Concern across its broad range.